72229308 has 24 divisors (see below), whose sum is σ = 168819840. Its totient is φ = 24035760.

The previous prime is 72229273. The next prime is 72229321. The reversal of 72229308 is 80392227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (7034160).

Almost surely, 2^72229308 is an apocalyptic number.

It is an amenable number.

72229308 is an abundant number, since it is smaller than the sum of its proper divisors (96590532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72229308 is a wasteful number, since it uses less digits than its factorization.

72229308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177 (or 10175 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 72229308 is about 8498.7827363688. The cubic root of 72229308 is about 416.4579445995.

The spelling of 72229308 in words is "seventy-two million, two hundred twenty-nine thousand, three hundred eight".